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Cheap flights from Seattle to Ireland from €236

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Seattle to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
12:00 - 11:50
SEA
-
DUB
39h 50m
2 stops
Scandinavian Airlines Logo
12:40 - 13:45
DUB
-
SEA
33h 05m
1 stop
€591Scandinavian Airlines
Wed, 19 Aug - Thu, 27 Aug
Scandinavian Airlines Logo
12:00 - 11:50
SEA
-
DUB
39h 50m
2 stops
Scandinavian Airlines Logo
11:40 - 13:45
DUB
-
SEA
58h 05m
2 stops
€593Scandinavian Airlines
Wed, 19 Aug - Wed, 26 Aug
TAP AIR PORTUGAL Logo
23:55 - 10:00
SEA
-
DUB
26h 05m
2 stops
TAP AIR PORTUGAL Logo
18:50 - 22:38
DUB
-
SEA
59h 48m
2 stops
€594TAP AIR PORTUGAL
Thu, 8 Oct - Mon, 19 Oct
TAP AIR PORTUGAL Logo
23:55 - 00:05
SEA
-
DUB
40h 10m
2 stops
TAP AIR PORTUGAL Logo
18:50 - 22:38
DUB
-
SEA
35h 48m
2 stops
€594TAP AIR PORTUGAL
Thu, 1 Oct - Thu, 15 Oct
Multiple Airlines Logo
19:00 - 13:00
SEA
-
DUB
34h 00m
3 stops
Multiple Airlines Logo
13:00 - 09:40
DUB
-
SEA
28h 40m
1 stop
€602Multiple Airlines
Sun, 10 May - Fri, 15 May
United Airlines Logo
05:00 - 07:30
SEA
-
SNN
18h 30m
2 stops
United Airlines Logo
09:30 - 15:36
SNN
-
SEA
14h 06m
1 stop
€643United Airlines
Mon, 7 Sep - Wed, 16 Sep
United Airlines Logo
05:00 - 07:30
SEA
-
SNN
18h 30m
2 stops
United Airlines Logo
09:30 - 21:11
SNN
-
SEA
19h 41m
2 stops
€647United Airlines
Mon, 7 Sep - Wed, 16 Sep
Delta Logo
07:15 - 11:10
SEA
-
SNN
19h 55m
1 stop
Delta Logo
13:05 - 22:16
SNN
-
SEA
17h 11m
1 stop
€658Delta
Tue, 4 Aug - Tue, 25 Aug
Delta Logo
13:30 - 14:40
SEA
-
ORK
17h 10m
1 stop
Delta Logo
10:50 - 16:35
ORK
-
SEA
13h 45m
1 stop
€841Delta
Tue, 18 Aug - Thu, 10 Sep
Multiple Airlines Logo
05:45 - 17:20
SEA
-
KIR
27h 35m
2 stops
Multiple Airlines Logo
10:25 - 09:40
KIR
-
SEA
31h 15m
3 stops
€849Multiple Airlines
Tue, 9 Jun - Tue, 16 Jun

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Scandinavian Airlines flights from Seattle to Ireland

Our best Scandinavian Airlines deals on Seattle to Ireland flight tickets
Scandinavian Airlines
19 Aug
SEA12:00Seattle/Tacoma Intl
39h 50m
2 stops
DUB11:50Dublin
27 Aug
DUB12:40Dublin
33h 05m
1 stop
SEA13:45Seattle/Tacoma Intl
€591
Scandinavian Airlines
19 Aug
SEA12:00Seattle/Tacoma Intl
39h 50m
2 stops
DUB11:50Dublin
26 Aug
DUB11:40Dublin
58h 05m
2 stops
SEA13:45Seattle/Tacoma Intl
€593
Scandinavian Airlines
8 Sept
SEA15:55Seattle/Tacoma Intl
34h 30m
2 stops
DUB10:25Dublin
11 Sept
DUB12:40Dublin
33h 05m
1 stop
SEA13:45Seattle/Tacoma Intl
€598

TAP AIR PORTUGAL flights from Seattle to Ireland

Our best TAP AIR PORTUGAL deals on Seattle to Ireland flight tickets
TAP AIR PORTUGAL
8 Oct
SEA23:55Seattle/Tacoma Intl
26h 05m
2 stops
DUB10:00Dublin
19 Oct
DUB18:50Dublin
59h 48m
2 stops
SEA22:38Seattle/Tacoma Intl
€594
TAP AIR PORTUGAL
1 Oct
SEA23:55Seattle/Tacoma Intl
40h 10m
2 stops
DUB00:05Dublin
15 Oct
DUB18:50Dublin
35h 48m
2 stops
SEA22:38Seattle/Tacoma Intl
€594
TAP AIR PORTUGAL
14 Oct
SEA23:55Seattle/Tacoma Intl
40h 10m
2 stops
DUB00:05Dublin
23 Oct
DUB10:45Dublin
43h 53m
2 stops
SEA22:38Seattle/Tacoma Intl
€597

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 29 April 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 19/8

12:00-11:50

2 stops39h 50m

Dublin

Thu 27/8

12:40-13:45

1 stop33h 05m

€591

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 19/8

12:00-11:50

2 stops39h 50m

Dublin

Wed 26/8

11:40-13:45

2 stops58h 05m

€593

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 8/10

23:55-10:00

2 stops26h 05m

Dublin

Mon 19/10

18:50-22:38

2 stops59h 48m

€594

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 1/10

23:55-00:05

2 stops40h 10m

Dublin

Thu 15/10

18:50-22:38

2 stops35h 48m

€594

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 10/5

19:00-13:00

3 stops34h 00m

Dublin

Fri 15/5

13:00-09:40

1 stop28h 40m

€602

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 7/9

05:00-07:30

2 stops18h 30m

Shannon

Wed 16/9

09:30-15:36

1 stop14h 06m

€643

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 7/9

05:00-07:30

2 stops18h 30m

Shannon

Wed 16/9

09:30-21:11

2 stops19h 41m

€647

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/8

07:15-11:10

1 stop19h 55m

Shannon

Tue 25/8

13:05-22:16

1 stop17h 11m

€658
Fastest return journey

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Tue 18/8

13:30-14:40

1 stop17h 10m

Cork

Thu 10/9

10:50-16:35

1 stop13h 45m

€841

SeattleMilltown (Kerry)

SEA - KIR

SEAKIR

Seattle/Tacoma Intl

Tue 9/6

05:45-17:20

2 stops27h 35m

Milltown (Kerry)

Tue 16/6

10:25-09:40

3 stops31h 15m

€849

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of November is another great option to travel to Ireland, with average flight prices from Seattle averaging around €256.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight from Seattle to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €528 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €428 on momondo.

Can stopping save me money on Seattle to Ireland flights?

No. A direct flight is the cheapest option for a flight between Seattle to Ireland.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 05m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights..
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

Frequently asked questions about flying from Seattle to Ireland

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €38
Flights to Corkfrom €85
Flights to Shannon, Clarefrom €92
Flights to Milltown (Kerry)from €38
Flights to Donegalfrom €77